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Release coating, release paper and applications thereof in manufacturing multicomponent activated polyurethane leather

A release coating and coating technology, applied in paper coating, textiles, papermaking, coating, etc., can solve the problems of high cost and limited effect, achieve the effect of improving release ability and reducing difficult peeling problems

Active Publication Date: 2015-05-20
浙江池河科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical scheme uses fluorinated epoxy resin as the release material of the acrylic functional coating. This material is a fluorine-containing material. When the amount is large, the cost is high. When the amount is small, the effect of the release paper produced is limited when used in the multi-active polyurethane casting coating system.

Method used

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  • Release coating, release paper and applications thereof in manufacturing multicomponent activated polyurethane leather
  • Release coating, release paper and applications thereof in manufacturing multicomponent activated polyurethane leather
  • Release coating, release paper and applications thereof in manufacturing multicomponent activated polyurethane leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In parts by weight, 22.08 parts of isodecyl methacrylate, 11.04 parts of methoxypolyethylene glycol 350 monomethacrylate, 16.56 parts of tripropylene glycol diacrylate, 11.04 parts of trimethylolpropane Acrylate, 22.08 parts of aliphatic urethane acrylate oligomer with multi-acrylate functional group (EBECRYL 5129 produced by allnex Belgium AG), 11.04 parts of polyester acrylate oligomer with multi-acrylate functional group (produced by allnex Belgium AG EBECRYL 411), 1.10 parts of hydroxyl-terminated dimethyl polysiloxane (viscosity of 500mpa.s / 25°C), 0.33 parts of 3-methacryloxypropyltrimethoxysilane (Nanjing Nengde Chemical Co., Ltd. Production of KH-570), 0.33 parts of dibutyltin dilaurate, 4.42 parts of 1-hydroxycyclohexyl phenyl ketone (Irgacure 184 produced by Ciba), put the above-mentioned components into a container at room ambient temperature and mix , Stir and disperse at a high speed to promote the dissolution of the soluble solid components to obtain a rele...

Embodiment 2

[0049] In parts by weight, 21.34 parts of isodecyl methacrylate, 10.67 parts of methoxypolyethylene glycol 350 monomethacrylate, 16.01 parts of tripropylene glycol diacrylate, 10.67 parts of trimethylolpropane Acrylate, 21.34 parts of aliphatic urethane acrylate oligomer with multi-acrylate functional group (EBECRYL 5129 produced by allnex Belgium AG), 10.67 parts of polyester acrylate oligomer with multi-acrylate functional group (produced by allnex Belgium AG EBECRYL 411), 4.27 parts of hydroxyl-terminated dimethyl polysiloxane (viscosity of 500mpa.s / 25°C), 0.43 parts of 3-methacryloxypropyltrimethoxysilane (Nanjing Nengde Chemical Co., Ltd. KH-570), 0.32 parts of dibutyltin dilaurate, 4.27 parts of 1-hydroxycyclohexyl phenyl ketone (Irgacure 184 produced by Ciba). The release coating is prepared in the same manner as in Example 1.

[0050] And make release paper by the method for embodiment 1.

Embodiment 3

[0052] In parts by weight, 20.66 parts of isodecyl methacrylate, 10.33 parts of methoxypolyethylene glycol 350 monomethacrylate, 15.50 parts of tripropylene glycol diacrylate, 10.33 parts of trimethylolpropane Acrylate, 20.66 parts of aliphatic urethane acrylate oligomer with multi-acrylate functional group (EBECRYL 5129 produced by allnex Belgium AG), 10.33 parts of polyester acrylate oligomer with multi-acrylate functional group (produced by allnex Belgium AG EBECRYL 411), 7.23 parts of hydroxyl-terminated dimethyl polysiloxane (viscosity of 500mpa.s / 25°C), 0.52 parts of 3-methacryloxypropyl trimethoxysilane (Nanjing Nengde Chemical Co., Ltd. KH-570), 0.31 parts of dibutyltin dilaurate, 4.13 parts of 1-hydroxycyclohexyl phenyl ketone (Irgacure 184 produced by Ciba). The release coating is prepared in the same manner as in Example 1.

[0053] And make release paper by the method for embodiment 1.

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Abstract

The invention provides a release coating, release paper manufactured based on the release coating, and applications thereof in manufacturing multicomponent activated polyurethane leather. The release coating is prepared from the following raw materials in parts by weight: a) 5-50 parts of alkyl methacrylate; b) 10-50 parts of methacrylate group containing methacrylate and / or methoxy polyethylene glycol monomethacrylate, wherein the number-average molecular weight of methoxy polyethylene glycol is 200-450; c) 5-60 parts of polymer containing acrylate functional group; d) 1-20 parts of terminal hydroxyl dimethyl-polysiloxane; e) 0.1-1.0 part of an acryloyloxy containing silane coupling agent; f) 0.05-0.5 part of an organic metal crosslinking agent; and g) 0-10 parts of an additive. The release paper disclosed by the invention is good in solvent resistance and excellent in release capacity, not only applicable to the manufacturing of PU and PVC, but also applicable to the manufacturing of multicomponent activated polyurethane-system artificial leather.

Description

technical field [0001] The invention relates to the field of release coatings and release papers, in particular to a release coating, a release paper made based on the release coating and an application in the manufacture of multi-component active polyurethane leather. Background technique [0002] The release paper used for leather production belongs to a kind of coated release paper, which is the carrier and temporary template for the manufacture of polyurethane synthetic leather (PU leather) and polyvinyl chloride artificial leather (PVC leather). The release paper usually has a two-layer structure: the first layer is the base paper as the substrate, and the second layer is the release coating. The general manufacturing method is to first coat a layer of primer on the base paper to reduce the penetration of the release coating, then apply the release coating, emboss and cure, and form a release coating on the primer. The composition, compounding and curing technology of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/20D21H19/24D21H19/32D21H27/30B32B29/00
Inventor 陈跃祖江黎明杨燕文
Owner 浙江池河科技有限公司